The Kensington SlimBlade Pro Trackball combines precision, comfort, and wireless convenience in a modern controller with a sleek, ergonomic design and ambidextrous control. You can choose between Bluetooth, 2.4 GHz wireless, and wired connection options. The rechargeable battery lasts up to 4 months. The agile trackball is operated with your finger and features dual ball sensors for fast navigation. The trackball requires less space than a mouse and is more comfortable and ergonomic for extended use, as it reduces movement of the arm and wrist. The optical tracking technology offers the highest precision and enhances productivity. Free KensingtonWorks software is included for customizing buttons as well as mouse pointer and scrolling speeds. Plug & Play installation. Compatible with Windows and macOS.